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'Rollout' is the distance travelled by a vehicle before the timing lights on a drag strip are triggered. … can affect the final run time by up to 0.3 of a second. … important to discount this first foot of movement from the final run time, to ensure that the run time captured by the GPS data logger is as close as possible to the official ...
Bracket racing is a form of drag racing that allows for a handicap between predicted elapsed time of the two cars over a standard distance, typically within the three standard distances (1/8 mile, 1,000 foot, or 1/4 mile) of drag racing.
Although a quarter mile (1320 feet, 402 m) is the best known measure for a drag track, many tracks are eighth mile (201 m) tracks, and the premiere classes will run 1,000 foot (304.8 m) races. The race is begun from a standing start which allows three factors to affect the outcome of the race: reaction time, power/weight ratio, and traction.
Often called "factory hot rods" because of their resemblance to production-based cars (and because they must maintain a relatively stock appearance), and commonly known as "doorslammers", Pro Stockers can record quarter-mile times in the 6.4 second range, and speeds over 210 mph (340 km/h).
Tire forces are divided into three axes: radial, lateral, and tangential (or fore-aft). The radial axis runs from the tire center toward the tread, and is the vertical axis running from the roadway through the tire center toward the vehicle. This axis supports the vehicle's weight. The lateral axis runs sideways across the tread.
As with land-based drag racing, competitors race their vehicles for the lowest elapsed time (low ET) over a straight race course of a defined length. There are three standard drag race course lengths, 660 feet (1/8 mile), 1,320 foot (1/4 mile), and the most common length, used in professional drag boat racing, 1,000 feet (3/16 mile plus 10 feet).
Winners circle for the NHRA Pro Mod Champions October 15, 2019, Team Sponsor: Bahrain 1 Racing Team: Killing Time Racing Driver: Steve Jackson AKA Stevie "Fast" Jackson Tuner: Billy Stocklin Pro Modified , also known as Pro Mod , is a class or division in the sport of drag racing used in the NHRA and FIA (quarter-mile) and the Professional Drag ...
At first, elapsed times in the 16 to 13-second range, and later on, 12 and 11 seconds for a quarter-mile standard distance, were considered remarkable. With time, however, the competitive spirit between manufacturers and also between participants to always go faster increased the pressure for more and more performance.
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